1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2021, Intel Corporation. */
3
4 #include "ice.h"
5 #include "ice_base.h"
6 #include "ice_lib.h"
7 #include "ice_flow.h"
8
9 #define to_fltr_conf_from_desc(p) \
10 container_of(p, struct virtchnl_fdir_fltr_conf, input)
11
12 #define ICE_FLOW_PROF_TYPE_S 0
13 #define ICE_FLOW_PROF_TYPE_M (0xFFFFFFFFULL << ICE_FLOW_PROF_TYPE_S)
14 #define ICE_FLOW_PROF_VSI_S 32
15 #define ICE_FLOW_PROF_VSI_M (0xFFFFFFFFULL << ICE_FLOW_PROF_VSI_S)
16
17 /* Flow profile ID format:
18 * [0:31] - flow type, flow + tun_offs
19 * [32:63] - VSI index
20 */
21 #define ICE_FLOW_PROF_FD(vsi, flow, tun_offs) \
22 ((u64)(((((flow) + (tun_offs)) & ICE_FLOW_PROF_TYPE_M)) | \
23 (((u64)(vsi) << ICE_FLOW_PROF_VSI_S) & ICE_FLOW_PROF_VSI_M)))
24
25 #define GTPU_TEID_OFFSET 4
26 #define GTPU_EH_QFI_OFFSET 1
27 #define GTPU_EH_QFI_MASK 0x3F
28 #define PFCP_S_OFFSET 0
29 #define PFCP_S_MASK 0x1
30 #define PFCP_PORT_NR 8805
31
32 #define FDIR_INSET_FLAG_ESP_S 0
33 #define FDIR_INSET_FLAG_ESP_M BIT_ULL(FDIR_INSET_FLAG_ESP_S)
34 #define FDIR_INSET_FLAG_ESP_UDP BIT_ULL(FDIR_INSET_FLAG_ESP_S)
35 #define FDIR_INSET_FLAG_ESP_IPSEC (0ULL << FDIR_INSET_FLAG_ESP_S)
36
37 enum ice_fdir_tunnel_type {
38 ICE_FDIR_TUNNEL_TYPE_NONE = 0,
39 ICE_FDIR_TUNNEL_TYPE_GTPU,
40 ICE_FDIR_TUNNEL_TYPE_GTPU_EH,
41 };
42
43 struct virtchnl_fdir_fltr_conf {
44 struct ice_fdir_fltr input;
45 enum ice_fdir_tunnel_type ttype;
46 u64 inset_flag;
47 u32 flow_id;
48 };
49
50 static enum virtchnl_proto_hdr_type vc_pattern_ether[] = {
51 VIRTCHNL_PROTO_HDR_ETH,
52 VIRTCHNL_PROTO_HDR_NONE,
53 };
54
55 static enum virtchnl_proto_hdr_type vc_pattern_ipv4[] = {
56 VIRTCHNL_PROTO_HDR_ETH,
57 VIRTCHNL_PROTO_HDR_IPV4,
58 VIRTCHNL_PROTO_HDR_NONE,
59 };
60
61 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_tcp[] = {
62 VIRTCHNL_PROTO_HDR_ETH,
63 VIRTCHNL_PROTO_HDR_IPV4,
64 VIRTCHNL_PROTO_HDR_TCP,
65 VIRTCHNL_PROTO_HDR_NONE,
66 };
67
68 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_udp[] = {
69 VIRTCHNL_PROTO_HDR_ETH,
70 VIRTCHNL_PROTO_HDR_IPV4,
71 VIRTCHNL_PROTO_HDR_UDP,
72 VIRTCHNL_PROTO_HDR_NONE,
73 };
74
75 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_sctp[] = {
76 VIRTCHNL_PROTO_HDR_ETH,
77 VIRTCHNL_PROTO_HDR_IPV4,
78 VIRTCHNL_PROTO_HDR_SCTP,
79 VIRTCHNL_PROTO_HDR_NONE,
80 };
81
82 static enum virtchnl_proto_hdr_type vc_pattern_ipv6[] = {
83 VIRTCHNL_PROTO_HDR_ETH,
84 VIRTCHNL_PROTO_HDR_IPV6,
85 VIRTCHNL_PROTO_HDR_NONE,
86 };
87
88 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_tcp[] = {
89 VIRTCHNL_PROTO_HDR_ETH,
90 VIRTCHNL_PROTO_HDR_IPV6,
91 VIRTCHNL_PROTO_HDR_TCP,
92 VIRTCHNL_PROTO_HDR_NONE,
93 };
94
95 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_udp[] = {
96 VIRTCHNL_PROTO_HDR_ETH,
97 VIRTCHNL_PROTO_HDR_IPV6,
98 VIRTCHNL_PROTO_HDR_UDP,
99 VIRTCHNL_PROTO_HDR_NONE,
100 };
101
102 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_sctp[] = {
103 VIRTCHNL_PROTO_HDR_ETH,
104 VIRTCHNL_PROTO_HDR_IPV6,
105 VIRTCHNL_PROTO_HDR_SCTP,
106 VIRTCHNL_PROTO_HDR_NONE,
107 };
108
109 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_gtpu[] = {
110 VIRTCHNL_PROTO_HDR_ETH,
111 VIRTCHNL_PROTO_HDR_IPV4,
112 VIRTCHNL_PROTO_HDR_UDP,
113 VIRTCHNL_PROTO_HDR_GTPU_IP,
114 VIRTCHNL_PROTO_HDR_NONE,
115 };
116
117 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_gtpu_eh[] = {
118 VIRTCHNL_PROTO_HDR_ETH,
119 VIRTCHNL_PROTO_HDR_IPV4,
120 VIRTCHNL_PROTO_HDR_UDP,
121 VIRTCHNL_PROTO_HDR_GTPU_IP,
122 VIRTCHNL_PROTO_HDR_GTPU_EH,
123 VIRTCHNL_PROTO_HDR_NONE,
124 };
125
126 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_l2tpv3[] = {
127 VIRTCHNL_PROTO_HDR_ETH,
128 VIRTCHNL_PROTO_HDR_IPV4,
129 VIRTCHNL_PROTO_HDR_L2TPV3,
130 VIRTCHNL_PROTO_HDR_NONE,
131 };
132
133 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_l2tpv3[] = {
134 VIRTCHNL_PROTO_HDR_ETH,
135 VIRTCHNL_PROTO_HDR_IPV6,
136 VIRTCHNL_PROTO_HDR_L2TPV3,
137 VIRTCHNL_PROTO_HDR_NONE,
138 };
139
140 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_esp[] = {
141 VIRTCHNL_PROTO_HDR_ETH,
142 VIRTCHNL_PROTO_HDR_IPV4,
143 VIRTCHNL_PROTO_HDR_ESP,
144 VIRTCHNL_PROTO_HDR_NONE,
145 };
146
147 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_esp[] = {
148 VIRTCHNL_PROTO_HDR_ETH,
149 VIRTCHNL_PROTO_HDR_IPV6,
150 VIRTCHNL_PROTO_HDR_ESP,
151 VIRTCHNL_PROTO_HDR_NONE,
152 };
153
154 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_ah[] = {
155 VIRTCHNL_PROTO_HDR_ETH,
156 VIRTCHNL_PROTO_HDR_IPV4,
157 VIRTCHNL_PROTO_HDR_AH,
158 VIRTCHNL_PROTO_HDR_NONE,
159 };
160
161 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_ah[] = {
162 VIRTCHNL_PROTO_HDR_ETH,
163 VIRTCHNL_PROTO_HDR_IPV6,
164 VIRTCHNL_PROTO_HDR_AH,
165 VIRTCHNL_PROTO_HDR_NONE,
166 };
167
168 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_nat_t_esp[] = {
169 VIRTCHNL_PROTO_HDR_ETH,
170 VIRTCHNL_PROTO_HDR_IPV4,
171 VIRTCHNL_PROTO_HDR_UDP,
172 VIRTCHNL_PROTO_HDR_ESP,
173 VIRTCHNL_PROTO_HDR_NONE,
174 };
175
176 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_nat_t_esp[] = {
177 VIRTCHNL_PROTO_HDR_ETH,
178 VIRTCHNL_PROTO_HDR_IPV6,
179 VIRTCHNL_PROTO_HDR_UDP,
180 VIRTCHNL_PROTO_HDR_ESP,
181 VIRTCHNL_PROTO_HDR_NONE,
182 };
183
184 static enum virtchnl_proto_hdr_type vc_pattern_ipv4_pfcp[] = {
185 VIRTCHNL_PROTO_HDR_ETH,
186 VIRTCHNL_PROTO_HDR_IPV4,
187 VIRTCHNL_PROTO_HDR_UDP,
188 VIRTCHNL_PROTO_HDR_PFCP,
189 VIRTCHNL_PROTO_HDR_NONE,
190 };
191
192 static enum virtchnl_proto_hdr_type vc_pattern_ipv6_pfcp[] = {
193 VIRTCHNL_PROTO_HDR_ETH,
194 VIRTCHNL_PROTO_HDR_IPV6,
195 VIRTCHNL_PROTO_HDR_UDP,
196 VIRTCHNL_PROTO_HDR_PFCP,
197 VIRTCHNL_PROTO_HDR_NONE,
198 };
199
200 struct virtchnl_fdir_pattern_match_item {
201 enum virtchnl_proto_hdr_type *list;
202 u64 input_set;
203 u64 *meta;
204 };
205
206 static const struct virtchnl_fdir_pattern_match_item vc_fdir_pattern_os[] = {
207 {vc_pattern_ipv4, 0, NULL},
208 {vc_pattern_ipv4_tcp, 0, NULL},
209 {vc_pattern_ipv4_udp, 0, NULL},
210 {vc_pattern_ipv4_sctp, 0, NULL},
211 {vc_pattern_ipv6, 0, NULL},
212 {vc_pattern_ipv6_tcp, 0, NULL},
213 {vc_pattern_ipv6_udp, 0, NULL},
214 {vc_pattern_ipv6_sctp, 0, NULL},
215 };
216
217 static const struct virtchnl_fdir_pattern_match_item vc_fdir_pattern_comms[] = {
218 {vc_pattern_ipv4, 0, NULL},
219 {vc_pattern_ipv4_tcp, 0, NULL},
220 {vc_pattern_ipv4_udp, 0, NULL},
221 {vc_pattern_ipv4_sctp, 0, NULL},
222 {vc_pattern_ipv6, 0, NULL},
223 {vc_pattern_ipv6_tcp, 0, NULL},
224 {vc_pattern_ipv6_udp, 0, NULL},
225 {vc_pattern_ipv6_sctp, 0, NULL},
226 {vc_pattern_ether, 0, NULL},
227 {vc_pattern_ipv4_gtpu, 0, NULL},
228 {vc_pattern_ipv4_gtpu_eh, 0, NULL},
229 {vc_pattern_ipv4_l2tpv3, 0, NULL},
230 {vc_pattern_ipv6_l2tpv3, 0, NULL},
231 {vc_pattern_ipv4_esp, 0, NULL},
232 {vc_pattern_ipv6_esp, 0, NULL},
233 {vc_pattern_ipv4_ah, 0, NULL},
234 {vc_pattern_ipv6_ah, 0, NULL},
235 {vc_pattern_ipv4_nat_t_esp, 0, NULL},
236 {vc_pattern_ipv6_nat_t_esp, 0, NULL},
237 {vc_pattern_ipv4_pfcp, 0, NULL},
238 {vc_pattern_ipv6_pfcp, 0, NULL},
239 };
240
241 struct virtchnl_fdir_inset_map {
242 enum virtchnl_proto_hdr_field field;
243 enum ice_flow_field fld;
244 u64 flag;
245 u64 mask;
246 };
247
248 static const struct virtchnl_fdir_inset_map fdir_inset_map[] = {
249 {VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE, ICE_FLOW_FIELD_IDX_ETH_TYPE, 0, 0},
250 {VIRTCHNL_PROTO_HDR_IPV4_SRC, ICE_FLOW_FIELD_IDX_IPV4_SA, 0, 0},
251 {VIRTCHNL_PROTO_HDR_IPV4_DST, ICE_FLOW_FIELD_IDX_IPV4_DA, 0, 0},
252 {VIRTCHNL_PROTO_HDR_IPV4_DSCP, ICE_FLOW_FIELD_IDX_IPV4_DSCP, 0, 0},
253 {VIRTCHNL_PROTO_HDR_IPV4_TTL, ICE_FLOW_FIELD_IDX_IPV4_TTL, 0, 0},
254 {VIRTCHNL_PROTO_HDR_IPV4_PROT, ICE_FLOW_FIELD_IDX_IPV4_PROT, 0, 0},
255 {VIRTCHNL_PROTO_HDR_IPV6_SRC, ICE_FLOW_FIELD_IDX_IPV6_SA, 0, 0},
256 {VIRTCHNL_PROTO_HDR_IPV6_DST, ICE_FLOW_FIELD_IDX_IPV6_DA, 0, 0},
257 {VIRTCHNL_PROTO_HDR_IPV6_TC, ICE_FLOW_FIELD_IDX_IPV6_DSCP, 0, 0},
258 {VIRTCHNL_PROTO_HDR_IPV6_HOP_LIMIT, ICE_FLOW_FIELD_IDX_IPV6_TTL, 0, 0},
259 {VIRTCHNL_PROTO_HDR_IPV6_PROT, ICE_FLOW_FIELD_IDX_IPV6_PROT, 0, 0},
260 {VIRTCHNL_PROTO_HDR_UDP_SRC_PORT, ICE_FLOW_FIELD_IDX_UDP_SRC_PORT, 0, 0},
261 {VIRTCHNL_PROTO_HDR_UDP_DST_PORT, ICE_FLOW_FIELD_IDX_UDP_DST_PORT, 0, 0},
262 {VIRTCHNL_PROTO_HDR_TCP_SRC_PORT, ICE_FLOW_FIELD_IDX_TCP_SRC_PORT, 0, 0},
263 {VIRTCHNL_PROTO_HDR_TCP_DST_PORT, ICE_FLOW_FIELD_IDX_TCP_DST_PORT, 0, 0},
264 {VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT, ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT, 0, 0},
265 {VIRTCHNL_PROTO_HDR_SCTP_DST_PORT, ICE_FLOW_FIELD_IDX_SCTP_DST_PORT, 0, 0},
266 {VIRTCHNL_PROTO_HDR_GTPU_IP_TEID, ICE_FLOW_FIELD_IDX_GTPU_IP_TEID, 0, 0},
267 {VIRTCHNL_PROTO_HDR_GTPU_EH_QFI, ICE_FLOW_FIELD_IDX_GTPU_EH_QFI, 0, 0},
268 {VIRTCHNL_PROTO_HDR_ESP_SPI, ICE_FLOW_FIELD_IDX_ESP_SPI,
269 FDIR_INSET_FLAG_ESP_IPSEC, FDIR_INSET_FLAG_ESP_M},
270 {VIRTCHNL_PROTO_HDR_ESP_SPI, ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI,
271 FDIR_INSET_FLAG_ESP_UDP, FDIR_INSET_FLAG_ESP_M},
272 {VIRTCHNL_PROTO_HDR_AH_SPI, ICE_FLOW_FIELD_IDX_AH_SPI, 0, 0},
273 {VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID, ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID, 0, 0},
274 {VIRTCHNL_PROTO_HDR_PFCP_S_FIELD, ICE_FLOW_FIELD_IDX_UDP_DST_PORT, 0, 0},
275 };
276
277 /**
278 * ice_vc_fdir_param_check
279 * @vf: pointer to the VF structure
280 * @vsi_id: VF relative VSI ID
281 *
282 * Check for the valid VSI ID, PF's state and VF's state
283 *
284 * Return: 0 on success, and -EINVAL on error.
285 */
286 static int
ice_vc_fdir_param_check(struct ice_vf * vf,u16 vsi_id)287 ice_vc_fdir_param_check(struct ice_vf *vf, u16 vsi_id)
288 {
289 struct ice_pf *pf = vf->pf;
290
291 if (!test_bit(ICE_FLAG_FD_ENA, pf->flags))
292 return -EINVAL;
293
294 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
295 return -EINVAL;
296
297 if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF))
298 return -EINVAL;
299
300 if (vsi_id != vf->lan_vsi_num)
301 return -EINVAL;
302
303 if (!ice_vc_isvalid_vsi_id(vf, vsi_id))
304 return -EINVAL;
305
306 if (!pf->vsi[vf->lan_vsi_idx])
307 return -EINVAL;
308
309 return 0;
310 }
311
312 /**
313 * ice_vf_start_ctrl_vsi
314 * @vf: pointer to the VF structure
315 *
316 * Allocate ctrl_vsi for the first time and open the ctrl_vsi port for VF
317 *
318 * Return: 0 on success, and other on error.
319 */
ice_vf_start_ctrl_vsi(struct ice_vf * vf)320 static int ice_vf_start_ctrl_vsi(struct ice_vf *vf)
321 {
322 struct ice_pf *pf = vf->pf;
323 struct ice_vsi *ctrl_vsi;
324 struct device *dev;
325 int err;
326
327 dev = ice_pf_to_dev(pf);
328 if (vf->ctrl_vsi_idx != ICE_NO_VSI)
329 return -EEXIST;
330
331 ctrl_vsi = ice_vf_ctrl_vsi_setup(vf);
332 if (!ctrl_vsi) {
333 dev_dbg(dev, "Could not setup control VSI for VF %d\n",
334 vf->vf_id);
335 return -ENOMEM;
336 }
337
338 err = ice_vsi_open_ctrl(ctrl_vsi);
339 if (err) {
340 dev_dbg(dev, "Could not open control VSI for VF %d\n",
341 vf->vf_id);
342 goto err_vsi_open;
343 }
344
345 return 0;
346
347 err_vsi_open:
348 ice_vsi_release(ctrl_vsi);
349 if (vf->ctrl_vsi_idx != ICE_NO_VSI) {
350 pf->vsi[vf->ctrl_vsi_idx] = NULL;
351 vf->ctrl_vsi_idx = ICE_NO_VSI;
352 }
353 return err;
354 }
355
356 /**
357 * ice_vc_fdir_alloc_prof - allocate profile for this filter flow type
358 * @vf: pointer to the VF structure
359 * @flow: filter flow type
360 *
361 * Return: 0 on success, and other on error.
362 */
363 static int
ice_vc_fdir_alloc_prof(struct ice_vf * vf,enum ice_fltr_ptype flow)364 ice_vc_fdir_alloc_prof(struct ice_vf *vf, enum ice_fltr_ptype flow)
365 {
366 struct ice_vf_fdir *fdir = &vf->fdir;
367
368 if (!fdir->fdir_prof) {
369 fdir->fdir_prof = devm_kcalloc(ice_pf_to_dev(vf->pf),
370 ICE_FLTR_PTYPE_MAX,
371 sizeof(*fdir->fdir_prof),
372 GFP_KERNEL);
373 if (!fdir->fdir_prof)
374 return -ENOMEM;
375 }
376
377 if (!fdir->fdir_prof[flow]) {
378 fdir->fdir_prof[flow] = devm_kzalloc(ice_pf_to_dev(vf->pf),
379 sizeof(**fdir->fdir_prof),
380 GFP_KERNEL);
381 if (!fdir->fdir_prof[flow])
382 return -ENOMEM;
383 }
384
385 return 0;
386 }
387
388 /**
389 * ice_vc_fdir_free_prof - free profile for this filter flow type
390 * @vf: pointer to the VF structure
391 * @flow: filter flow type
392 */
393 static void
ice_vc_fdir_free_prof(struct ice_vf * vf,enum ice_fltr_ptype flow)394 ice_vc_fdir_free_prof(struct ice_vf *vf, enum ice_fltr_ptype flow)
395 {
396 struct ice_vf_fdir *fdir = &vf->fdir;
397
398 if (!fdir->fdir_prof)
399 return;
400
401 if (!fdir->fdir_prof[flow])
402 return;
403
404 devm_kfree(ice_pf_to_dev(vf->pf), fdir->fdir_prof[flow]);
405 fdir->fdir_prof[flow] = NULL;
406 }
407
408 /**
409 * ice_vc_fdir_free_prof_all - free all the profile for this VF
410 * @vf: pointer to the VF structure
411 */
ice_vc_fdir_free_prof_all(struct ice_vf * vf)412 static void ice_vc_fdir_free_prof_all(struct ice_vf *vf)
413 {
414 struct ice_vf_fdir *fdir = &vf->fdir;
415 enum ice_fltr_ptype flow;
416
417 if (!fdir->fdir_prof)
418 return;
419
420 for (flow = ICE_FLTR_PTYPE_NONF_NONE; flow < ICE_FLTR_PTYPE_MAX; flow++)
421 ice_vc_fdir_free_prof(vf, flow);
422
423 devm_kfree(ice_pf_to_dev(vf->pf), fdir->fdir_prof);
424 fdir->fdir_prof = NULL;
425 }
426
427 /**
428 * ice_vc_fdir_parse_flow_fld
429 * @proto_hdr: virtual channel protocol filter header
430 * @conf: FDIR configuration for each filter
431 * @fld: field type array
432 * @fld_cnt: field counter
433 *
434 * Parse the virtual channel filter header and store them into field type array
435 *
436 * Return: 0 on success, and other on error.
437 */
438 static int
ice_vc_fdir_parse_flow_fld(struct virtchnl_proto_hdr * proto_hdr,struct virtchnl_fdir_fltr_conf * conf,enum ice_flow_field * fld,int * fld_cnt)439 ice_vc_fdir_parse_flow_fld(struct virtchnl_proto_hdr *proto_hdr,
440 struct virtchnl_fdir_fltr_conf *conf,
441 enum ice_flow_field *fld, int *fld_cnt)
442 {
443 struct virtchnl_proto_hdr hdr;
444 u32 i;
445
446 memcpy(&hdr, proto_hdr, sizeof(hdr));
447
448 for (i = 0; (i < ARRAY_SIZE(fdir_inset_map)) &&
449 VIRTCHNL_GET_PROTO_HDR_FIELD(&hdr); i++)
450 if (VIRTCHNL_TEST_PROTO_HDR(&hdr, fdir_inset_map[i].field)) {
451 if (fdir_inset_map[i].mask &&
452 ((fdir_inset_map[i].mask & conf->inset_flag) !=
453 fdir_inset_map[i].flag))
454 continue;
455
456 fld[*fld_cnt] = fdir_inset_map[i].fld;
457 *fld_cnt += 1;
458 if (*fld_cnt >= ICE_FLOW_FIELD_IDX_MAX)
459 return -EINVAL;
460 VIRTCHNL_DEL_PROTO_HDR_FIELD(&hdr,
461 fdir_inset_map[i].field);
462 }
463
464 return 0;
465 }
466
467 /**
468 * ice_vc_fdir_set_flow_fld
469 * @vf: pointer to the VF structure
470 * @fltr: virtual channel add cmd buffer
471 * @conf: FDIR configuration for each filter
472 * @seg: array of one or more packet segments that describe the flow
473 *
474 * Parse the virtual channel add msg buffer's field vector and store them into
475 * flow's packet segment field
476 *
477 * Return: 0 on success, and other on error.
478 */
479 static int
ice_vc_fdir_set_flow_fld(struct ice_vf * vf,struct virtchnl_fdir_add * fltr,struct virtchnl_fdir_fltr_conf * conf,struct ice_flow_seg_info * seg)480 ice_vc_fdir_set_flow_fld(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
481 struct virtchnl_fdir_fltr_conf *conf,
482 struct ice_flow_seg_info *seg)
483 {
484 struct virtchnl_fdir_rule *rule = &fltr->rule_cfg;
485 enum ice_flow_field fld[ICE_FLOW_FIELD_IDX_MAX];
486 struct device *dev = ice_pf_to_dev(vf->pf);
487 struct virtchnl_proto_hdrs *proto;
488 int fld_cnt = 0;
489 int i;
490
491 proto = &rule->proto_hdrs;
492 for (i = 0; i < proto->count; i++) {
493 struct virtchnl_proto_hdr *hdr = &proto->proto_hdr[i];
494 int ret;
495
496 ret = ice_vc_fdir_parse_flow_fld(hdr, conf, fld, &fld_cnt);
497 if (ret)
498 return ret;
499 }
500
501 if (fld_cnt == 0) {
502 dev_dbg(dev, "Empty input set for VF %d\n", vf->vf_id);
503 return -EINVAL;
504 }
505
506 for (i = 0; i < fld_cnt; i++)
507 ice_flow_set_fld(seg, fld[i],
508 ICE_FLOW_FLD_OFF_INVAL,
509 ICE_FLOW_FLD_OFF_INVAL,
510 ICE_FLOW_FLD_OFF_INVAL, false);
511
512 return 0;
513 }
514
515 /**
516 * ice_vc_fdir_set_flow_hdr - config the flow's packet segment header
517 * @vf: pointer to the VF structure
518 * @conf: FDIR configuration for each filter
519 * @seg: array of one or more packet segments that describe the flow
520 *
521 * Return: 0 on success, and other on error.
522 */
523 static int
ice_vc_fdir_set_flow_hdr(struct ice_vf * vf,struct virtchnl_fdir_fltr_conf * conf,struct ice_flow_seg_info * seg)524 ice_vc_fdir_set_flow_hdr(struct ice_vf *vf,
525 struct virtchnl_fdir_fltr_conf *conf,
526 struct ice_flow_seg_info *seg)
527 {
528 enum ice_fltr_ptype flow = conf->input.flow_type;
529 enum ice_fdir_tunnel_type ttype = conf->ttype;
530 struct device *dev = ice_pf_to_dev(vf->pf);
531
532 switch (flow) {
533 case ICE_FLTR_PTYPE_NON_IP_L2:
534 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_ETH_NON_IP);
535 break;
536 case ICE_FLTR_PTYPE_NONF_IPV4_L2TPV3:
537 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_L2TPV3 |
538 ICE_FLOW_SEG_HDR_IPV4 |
539 ICE_FLOW_SEG_HDR_IPV_OTHER);
540 break;
541 case ICE_FLTR_PTYPE_NONF_IPV4_ESP:
542 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_ESP |
543 ICE_FLOW_SEG_HDR_IPV4 |
544 ICE_FLOW_SEG_HDR_IPV_OTHER);
545 break;
546 case ICE_FLTR_PTYPE_NONF_IPV4_AH:
547 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_AH |
548 ICE_FLOW_SEG_HDR_IPV4 |
549 ICE_FLOW_SEG_HDR_IPV_OTHER);
550 break;
551 case ICE_FLTR_PTYPE_NONF_IPV4_NAT_T_ESP:
552 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_NAT_T_ESP |
553 ICE_FLOW_SEG_HDR_IPV4 |
554 ICE_FLOW_SEG_HDR_IPV_OTHER);
555 break;
556 case ICE_FLTR_PTYPE_NONF_IPV4_PFCP_NODE:
557 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_NODE |
558 ICE_FLOW_SEG_HDR_IPV4 |
559 ICE_FLOW_SEG_HDR_IPV_OTHER);
560 break;
561 case ICE_FLTR_PTYPE_NONF_IPV4_PFCP_SESSION:
562 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_SESSION |
563 ICE_FLOW_SEG_HDR_IPV4 |
564 ICE_FLOW_SEG_HDR_IPV_OTHER);
565 break;
566 case ICE_FLTR_PTYPE_NONF_IPV4_OTHER:
567 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV4 |
568 ICE_FLOW_SEG_HDR_IPV_OTHER);
569 break;
570 case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
571 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_TCP |
572 ICE_FLOW_SEG_HDR_IPV4 |
573 ICE_FLOW_SEG_HDR_IPV_OTHER);
574 break;
575 case ICE_FLTR_PTYPE_NONF_IPV4_UDP:
576 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_UDP |
577 ICE_FLOW_SEG_HDR_IPV4 |
578 ICE_FLOW_SEG_HDR_IPV_OTHER);
579 break;
580 case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_UDP:
581 case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_TCP:
582 case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_ICMP:
583 case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER:
584 if (ttype == ICE_FDIR_TUNNEL_TYPE_GTPU) {
585 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_GTPU_IP |
586 ICE_FLOW_SEG_HDR_IPV4 |
587 ICE_FLOW_SEG_HDR_IPV_OTHER);
588 } else if (ttype == ICE_FDIR_TUNNEL_TYPE_GTPU_EH) {
589 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_GTPU_EH |
590 ICE_FLOW_SEG_HDR_GTPU_IP |
591 ICE_FLOW_SEG_HDR_IPV4 |
592 ICE_FLOW_SEG_HDR_IPV_OTHER);
593 } else {
594 dev_dbg(dev, "Invalid tunnel type 0x%x for VF %d\n",
595 flow, vf->vf_id);
596 return -EINVAL;
597 }
598 break;
599 case ICE_FLTR_PTYPE_NONF_IPV4_SCTP:
600 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_SCTP |
601 ICE_FLOW_SEG_HDR_IPV4 |
602 ICE_FLOW_SEG_HDR_IPV_OTHER);
603 break;
604 case ICE_FLTR_PTYPE_NONF_IPV6_L2TPV3:
605 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_L2TPV3 |
606 ICE_FLOW_SEG_HDR_IPV6 |
607 ICE_FLOW_SEG_HDR_IPV_OTHER);
608 break;
609 case ICE_FLTR_PTYPE_NONF_IPV6_ESP:
610 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_ESP |
611 ICE_FLOW_SEG_HDR_IPV6 |
612 ICE_FLOW_SEG_HDR_IPV_OTHER);
613 break;
614 case ICE_FLTR_PTYPE_NONF_IPV6_AH:
615 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_AH |
616 ICE_FLOW_SEG_HDR_IPV6 |
617 ICE_FLOW_SEG_HDR_IPV_OTHER);
618 break;
619 case ICE_FLTR_PTYPE_NONF_IPV6_NAT_T_ESP:
620 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_NAT_T_ESP |
621 ICE_FLOW_SEG_HDR_IPV6 |
622 ICE_FLOW_SEG_HDR_IPV_OTHER);
623 break;
624 case ICE_FLTR_PTYPE_NONF_IPV6_PFCP_NODE:
625 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_NODE |
626 ICE_FLOW_SEG_HDR_IPV6 |
627 ICE_FLOW_SEG_HDR_IPV_OTHER);
628 break;
629 case ICE_FLTR_PTYPE_NONF_IPV6_PFCP_SESSION:
630 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_SESSION |
631 ICE_FLOW_SEG_HDR_IPV6 |
632 ICE_FLOW_SEG_HDR_IPV_OTHER);
633 break;
634 case ICE_FLTR_PTYPE_NONF_IPV6_OTHER:
635 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV6 |
636 ICE_FLOW_SEG_HDR_IPV_OTHER);
637 break;
638 case ICE_FLTR_PTYPE_NONF_IPV6_TCP:
639 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_TCP |
640 ICE_FLOW_SEG_HDR_IPV6 |
641 ICE_FLOW_SEG_HDR_IPV_OTHER);
642 break;
643 case ICE_FLTR_PTYPE_NONF_IPV6_UDP:
644 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_UDP |
645 ICE_FLOW_SEG_HDR_IPV6 |
646 ICE_FLOW_SEG_HDR_IPV_OTHER);
647 break;
648 case ICE_FLTR_PTYPE_NONF_IPV6_SCTP:
649 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_SCTP |
650 ICE_FLOW_SEG_HDR_IPV6 |
651 ICE_FLOW_SEG_HDR_IPV_OTHER);
652 break;
653 default:
654 dev_dbg(dev, "Invalid flow type 0x%x for VF %d failed\n",
655 flow, vf->vf_id);
656 return -EINVAL;
657 }
658
659 return 0;
660 }
661
662 /**
663 * ice_vc_fdir_rem_prof - remove profile for this filter flow type
664 * @vf: pointer to the VF structure
665 * @flow: filter flow type
666 * @tun: 0 implies non-tunnel type filter, 1 implies tunnel type filter
667 */
668 static void
ice_vc_fdir_rem_prof(struct ice_vf * vf,enum ice_fltr_ptype flow,int tun)669 ice_vc_fdir_rem_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, int tun)
670 {
671 struct ice_vf_fdir *fdir = &vf->fdir;
672 struct ice_fd_hw_prof *vf_prof;
673 struct ice_pf *pf = vf->pf;
674 struct ice_vsi *vf_vsi;
675 struct device *dev;
676 struct ice_hw *hw;
677 u64 prof_id;
678 int i;
679
680 dev = ice_pf_to_dev(pf);
681 hw = &pf->hw;
682 if (!fdir->fdir_prof || !fdir->fdir_prof[flow])
683 return;
684
685 vf_prof = fdir->fdir_prof[flow];
686
687 vf_vsi = pf->vsi[vf->lan_vsi_idx];
688 if (!vf_vsi) {
689 dev_dbg(dev, "NULL vf %d vsi pointer\n", vf->vf_id);
690 return;
691 }
692
693 if (!fdir->prof_entry_cnt[flow][tun])
694 return;
695
696 prof_id = ICE_FLOW_PROF_FD(vf_vsi->vsi_num,
697 flow, tun ? ICE_FLTR_PTYPE_MAX : 0);
698
699 for (i = 0; i < fdir->prof_entry_cnt[flow][tun]; i++)
700 if (vf_prof->entry_h[i][tun]) {
701 u16 vsi_num = ice_get_hw_vsi_num(hw, vf_prof->vsi_h[i]);
702
703 ice_rem_prof_id_flow(hw, ICE_BLK_FD, vsi_num, prof_id);
704 ice_flow_rem_entry(hw, ICE_BLK_FD,
705 vf_prof->entry_h[i][tun]);
706 vf_prof->entry_h[i][tun] = 0;
707 }
708
709 ice_flow_rem_prof(hw, ICE_BLK_FD, prof_id);
710 devm_kfree(dev, vf_prof->fdir_seg[tun]);
711 vf_prof->fdir_seg[tun] = NULL;
712
713 for (i = 0; i < vf_prof->cnt; i++)
714 vf_prof->vsi_h[i] = 0;
715
716 fdir->prof_entry_cnt[flow][tun] = 0;
717 }
718
719 /**
720 * ice_vc_fdir_rem_prof_all - remove profile for this VF
721 * @vf: pointer to the VF structure
722 */
ice_vc_fdir_rem_prof_all(struct ice_vf * vf)723 static void ice_vc_fdir_rem_prof_all(struct ice_vf *vf)
724 {
725 enum ice_fltr_ptype flow;
726
727 for (flow = ICE_FLTR_PTYPE_NONF_NONE;
728 flow < ICE_FLTR_PTYPE_MAX; flow++) {
729 ice_vc_fdir_rem_prof(vf, flow, 0);
730 ice_vc_fdir_rem_prof(vf, flow, 1);
731 }
732 }
733
734 /**
735 * ice_vc_fdir_write_flow_prof
736 * @vf: pointer to the VF structure
737 * @flow: filter flow type
738 * @seg: array of one or more packet segments that describe the flow
739 * @tun: 0 implies non-tunnel type filter, 1 implies tunnel type filter
740 *
741 * Write the flow's profile config and packet segment into the hardware
742 *
743 * Return: 0 on success, and other on error.
744 */
745 static int
ice_vc_fdir_write_flow_prof(struct ice_vf * vf,enum ice_fltr_ptype flow,struct ice_flow_seg_info * seg,int tun)746 ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow,
747 struct ice_flow_seg_info *seg, int tun)
748 {
749 struct ice_vf_fdir *fdir = &vf->fdir;
750 struct ice_vsi *vf_vsi, *ctrl_vsi;
751 struct ice_flow_seg_info *old_seg;
752 struct ice_flow_prof *prof = NULL;
753 struct ice_fd_hw_prof *vf_prof;
754 enum ice_status status;
755 struct device *dev;
756 struct ice_pf *pf;
757 struct ice_hw *hw;
758 u64 entry1_h = 0;
759 u64 entry2_h = 0;
760 u64 prof_id;
761 int ret;
762
763 pf = vf->pf;
764 dev = ice_pf_to_dev(pf);
765 hw = &pf->hw;
766 vf_vsi = pf->vsi[vf->lan_vsi_idx];
767 if (!vf_vsi)
768 return -EINVAL;
769
770 ctrl_vsi = pf->vsi[vf->ctrl_vsi_idx];
771 if (!ctrl_vsi)
772 return -EINVAL;
773
774 vf_prof = fdir->fdir_prof[flow];
775 old_seg = vf_prof->fdir_seg[tun];
776 if (old_seg) {
777 if (!memcmp(old_seg, seg, sizeof(*seg))) {
778 dev_dbg(dev, "Duplicated profile for VF %d!\n",
779 vf->vf_id);
780 return -EEXIST;
781 }
782
783 if (fdir->fdir_fltr_cnt[flow][tun]) {
784 ret = -EINVAL;
785 dev_dbg(dev, "Input set conflicts for VF %d\n",
786 vf->vf_id);
787 goto err_exit;
788 }
789
790 /* remove previously allocated profile */
791 ice_vc_fdir_rem_prof(vf, flow, tun);
792 }
793
794 prof_id = ICE_FLOW_PROF_FD(vf_vsi->vsi_num, flow,
795 tun ? ICE_FLTR_PTYPE_MAX : 0);
796
797 status = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof_id, seg,
798 tun + 1, &prof);
799 ret = ice_status_to_errno(status);
800 if (ret) {
801 dev_dbg(dev, "Could not add VSI flow 0x%x for VF %d\n",
802 flow, vf->vf_id);
803 goto err_exit;
804 }
805
806 status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, vf_vsi->idx,
807 vf_vsi->idx, ICE_FLOW_PRIO_NORMAL,
808 seg, &entry1_h);
809 ret = ice_status_to_errno(status);
810 if (ret) {
811 dev_dbg(dev, "Could not add flow 0x%x VSI entry for VF %d\n",
812 flow, vf->vf_id);
813 goto err_prof;
814 }
815
816 status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, vf_vsi->idx,
817 ctrl_vsi->idx, ICE_FLOW_PRIO_NORMAL,
818 seg, &entry2_h);
819 ret = ice_status_to_errno(status);
820 if (ret) {
821 dev_dbg(dev,
822 "Could not add flow 0x%x Ctrl VSI entry for VF %d\n",
823 flow, vf->vf_id);
824 goto err_entry_1;
825 }
826
827 vf_prof->fdir_seg[tun] = seg;
828 vf_prof->cnt = 0;
829 fdir->prof_entry_cnt[flow][tun] = 0;
830
831 vf_prof->entry_h[vf_prof->cnt][tun] = entry1_h;
832 vf_prof->vsi_h[vf_prof->cnt] = vf_vsi->idx;
833 vf_prof->cnt++;
834 fdir->prof_entry_cnt[flow][tun]++;
835
836 vf_prof->entry_h[vf_prof->cnt][tun] = entry2_h;
837 vf_prof->vsi_h[vf_prof->cnt] = ctrl_vsi->idx;
838 vf_prof->cnt++;
839 fdir->prof_entry_cnt[flow][tun]++;
840
841 return 0;
842
843 err_entry_1:
844 ice_rem_prof_id_flow(hw, ICE_BLK_FD,
845 ice_get_hw_vsi_num(hw, vf_vsi->idx), prof_id);
846 ice_flow_rem_entry(hw, ICE_BLK_FD, entry1_h);
847 err_prof:
848 ice_flow_rem_prof(hw, ICE_BLK_FD, prof_id);
849 err_exit:
850 return ret;
851 }
852
853 /**
854 * ice_vc_fdir_config_input_set
855 * @vf: pointer to the VF structure
856 * @fltr: virtual channel add cmd buffer
857 * @conf: FDIR configuration for each filter
858 * @tun: 0 implies non-tunnel type filter, 1 implies tunnel type filter
859 *
860 * Config the input set type and value for virtual channel add msg buffer
861 *
862 * Return: 0 on success, and other on error.
863 */
864 static int
ice_vc_fdir_config_input_set(struct ice_vf * vf,struct virtchnl_fdir_add * fltr,struct virtchnl_fdir_fltr_conf * conf,int tun)865 ice_vc_fdir_config_input_set(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
866 struct virtchnl_fdir_fltr_conf *conf, int tun)
867 {
868 struct ice_fdir_fltr *input = &conf->input;
869 struct device *dev = ice_pf_to_dev(vf->pf);
870 struct ice_flow_seg_info *seg;
871 enum ice_fltr_ptype flow;
872 int ret;
873
874 flow = input->flow_type;
875 ret = ice_vc_fdir_alloc_prof(vf, flow);
876 if (ret) {
877 dev_dbg(dev, "Alloc flow prof for VF %d failed\n", vf->vf_id);
878 return ret;
879 }
880
881 seg = devm_kzalloc(dev, sizeof(*seg), GFP_KERNEL);
882 if (!seg)
883 return -ENOMEM;
884
885 ret = ice_vc_fdir_set_flow_fld(vf, fltr, conf, seg);
886 if (ret) {
887 dev_dbg(dev, "Set flow field for VF %d failed\n", vf->vf_id);
888 goto err_exit;
889 }
890
891 ret = ice_vc_fdir_set_flow_hdr(vf, conf, seg);
892 if (ret) {
893 dev_dbg(dev, "Set flow hdr for VF %d failed\n", vf->vf_id);
894 goto err_exit;
895 }
896
897 ret = ice_vc_fdir_write_flow_prof(vf, flow, seg, tun);
898 if (ret == -EEXIST) {
899 devm_kfree(dev, seg);
900 } else if (ret) {
901 dev_dbg(dev, "Write flow profile for VF %d failed\n",
902 vf->vf_id);
903 goto err_exit;
904 }
905
906 return 0;
907
908 err_exit:
909 devm_kfree(dev, seg);
910 return ret;
911 }
912
913 /**
914 * ice_vc_fdir_match_pattern
915 * @fltr: virtual channel add cmd buffer
916 * @type: virtual channel protocol filter header type
917 *
918 * Matching the header type by comparing fltr and type's value.
919 *
920 * Return: true on success, and false on error.
921 */
922 static bool
ice_vc_fdir_match_pattern(struct virtchnl_fdir_add * fltr,enum virtchnl_proto_hdr_type * type)923 ice_vc_fdir_match_pattern(struct virtchnl_fdir_add *fltr,
924 enum virtchnl_proto_hdr_type *type)
925 {
926 struct virtchnl_proto_hdrs *proto = &fltr->rule_cfg.proto_hdrs;
927 int i = 0;
928
929 while ((i < proto->count) &&
930 (*type == proto->proto_hdr[i].type) &&
931 (*type != VIRTCHNL_PROTO_HDR_NONE)) {
932 type++;
933 i++;
934 }
935
936 return ((i == proto->count) && (*type == VIRTCHNL_PROTO_HDR_NONE));
937 }
938
939 /**
940 * ice_vc_fdir_get_pattern - get while list pattern
941 * @vf: pointer to the VF info
942 * @len: filter list length
943 *
944 * Return: pointer to allowed filter list
945 */
946 static const struct virtchnl_fdir_pattern_match_item *
ice_vc_fdir_get_pattern(struct ice_vf * vf,int * len)947 ice_vc_fdir_get_pattern(struct ice_vf *vf, int *len)
948 {
949 const struct virtchnl_fdir_pattern_match_item *item;
950 struct ice_pf *pf = vf->pf;
951 struct ice_hw *hw;
952
953 hw = &pf->hw;
954 if (!strncmp(hw->active_pkg_name, "ICE COMMS Package",
955 sizeof(hw->active_pkg_name))) {
956 item = vc_fdir_pattern_comms;
957 *len = ARRAY_SIZE(vc_fdir_pattern_comms);
958 } else {
959 item = vc_fdir_pattern_os;
960 *len = ARRAY_SIZE(vc_fdir_pattern_os);
961 }
962
963 return item;
964 }
965
966 /**
967 * ice_vc_fdir_search_pattern
968 * @vf: pointer to the VF info
969 * @fltr: virtual channel add cmd buffer
970 *
971 * Search for matched pattern from supported pattern list
972 *
973 * Return: 0 on success, and other on error.
974 */
975 static int
ice_vc_fdir_search_pattern(struct ice_vf * vf,struct virtchnl_fdir_add * fltr)976 ice_vc_fdir_search_pattern(struct ice_vf *vf, struct virtchnl_fdir_add *fltr)
977 {
978 const struct virtchnl_fdir_pattern_match_item *pattern;
979 int len, i;
980
981 pattern = ice_vc_fdir_get_pattern(vf, &len);
982
983 for (i = 0; i < len; i++)
984 if (ice_vc_fdir_match_pattern(fltr, pattern[i].list))
985 return 0;
986
987 return -EINVAL;
988 }
989
990 /**
991 * ice_vc_fdir_parse_pattern
992 * @vf: pointer to the VF info
993 * @fltr: virtual channel add cmd buffer
994 * @conf: FDIR configuration for each filter
995 *
996 * Parse the virtual channel filter's pattern and store them into conf
997 *
998 * Return: 0 on success, and other on error.
999 */
1000 static int
ice_vc_fdir_parse_pattern(struct ice_vf * vf,struct virtchnl_fdir_add * fltr,struct virtchnl_fdir_fltr_conf * conf)1001 ice_vc_fdir_parse_pattern(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
1002 struct virtchnl_fdir_fltr_conf *conf)
1003 {
1004 struct virtchnl_proto_hdrs *proto = &fltr->rule_cfg.proto_hdrs;
1005 enum virtchnl_proto_hdr_type l3 = VIRTCHNL_PROTO_HDR_NONE;
1006 enum virtchnl_proto_hdr_type l4 = VIRTCHNL_PROTO_HDR_NONE;
1007 struct device *dev = ice_pf_to_dev(vf->pf);
1008 struct ice_fdir_fltr *input = &conf->input;
1009 int i;
1010
1011 if (proto->count > VIRTCHNL_MAX_NUM_PROTO_HDRS) {
1012 dev_dbg(dev, "Invalid protocol count:0x%x for VF %d\n",
1013 proto->count, vf->vf_id);
1014 return -EINVAL;
1015 }
1016
1017 for (i = 0; i < proto->count; i++) {
1018 struct virtchnl_proto_hdr *hdr = &proto->proto_hdr[i];
1019 struct ip_esp_hdr *esph;
1020 struct ip_auth_hdr *ah;
1021 struct sctphdr *sctph;
1022 struct ipv6hdr *ip6h;
1023 struct udphdr *udph;
1024 struct tcphdr *tcph;
1025 struct ethhdr *eth;
1026 struct iphdr *iph;
1027 u8 s_field;
1028 u8 *rawh;
1029
1030 switch (hdr->type) {
1031 case VIRTCHNL_PROTO_HDR_ETH:
1032 eth = (struct ethhdr *)hdr->buffer;
1033 input->flow_type = ICE_FLTR_PTYPE_NON_IP_L2;
1034
1035 if (hdr->field_selector)
1036 input->ext_data.ether_type = eth->h_proto;
1037 break;
1038 case VIRTCHNL_PROTO_HDR_IPV4:
1039 iph = (struct iphdr *)hdr->buffer;
1040 l3 = VIRTCHNL_PROTO_HDR_IPV4;
1041 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_OTHER;
1042
1043 if (hdr->field_selector) {
1044 input->ip.v4.src_ip = iph->saddr;
1045 input->ip.v4.dst_ip = iph->daddr;
1046 input->ip.v4.tos = iph->tos;
1047 input->ip.v4.proto = iph->protocol;
1048 }
1049 break;
1050 case VIRTCHNL_PROTO_HDR_IPV6:
1051 ip6h = (struct ipv6hdr *)hdr->buffer;
1052 l3 = VIRTCHNL_PROTO_HDR_IPV6;
1053 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_OTHER;
1054
1055 if (hdr->field_selector) {
1056 memcpy(input->ip.v6.src_ip,
1057 ip6h->saddr.in6_u.u6_addr8,
1058 sizeof(ip6h->saddr));
1059 memcpy(input->ip.v6.dst_ip,
1060 ip6h->daddr.in6_u.u6_addr8,
1061 sizeof(ip6h->daddr));
1062 input->ip.v6.tc = ((u8)(ip6h->priority) << 4) |
1063 (ip6h->flow_lbl[0] >> 4);
1064 input->ip.v6.proto = ip6h->nexthdr;
1065 }
1066 break;
1067 case VIRTCHNL_PROTO_HDR_TCP:
1068 tcph = (struct tcphdr *)hdr->buffer;
1069 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1070 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_TCP;
1071 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1072 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_TCP;
1073
1074 if (hdr->field_selector) {
1075 if (l3 == VIRTCHNL_PROTO_HDR_IPV4) {
1076 input->ip.v4.src_port = tcph->source;
1077 input->ip.v4.dst_port = tcph->dest;
1078 } else if (l3 == VIRTCHNL_PROTO_HDR_IPV6) {
1079 input->ip.v6.src_port = tcph->source;
1080 input->ip.v6.dst_port = tcph->dest;
1081 }
1082 }
1083 break;
1084 case VIRTCHNL_PROTO_HDR_UDP:
1085 udph = (struct udphdr *)hdr->buffer;
1086 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1087 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_UDP;
1088 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1089 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_UDP;
1090
1091 if (hdr->field_selector) {
1092 if (l3 == VIRTCHNL_PROTO_HDR_IPV4) {
1093 input->ip.v4.src_port = udph->source;
1094 input->ip.v4.dst_port = udph->dest;
1095 } else if (l3 == VIRTCHNL_PROTO_HDR_IPV6) {
1096 input->ip.v6.src_port = udph->source;
1097 input->ip.v6.dst_port = udph->dest;
1098 }
1099 }
1100 break;
1101 case VIRTCHNL_PROTO_HDR_SCTP:
1102 sctph = (struct sctphdr *)hdr->buffer;
1103 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1104 input->flow_type =
1105 ICE_FLTR_PTYPE_NONF_IPV4_SCTP;
1106 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1107 input->flow_type =
1108 ICE_FLTR_PTYPE_NONF_IPV6_SCTP;
1109
1110 if (hdr->field_selector) {
1111 if (l3 == VIRTCHNL_PROTO_HDR_IPV4) {
1112 input->ip.v4.src_port = sctph->source;
1113 input->ip.v4.dst_port = sctph->dest;
1114 } else if (l3 == VIRTCHNL_PROTO_HDR_IPV6) {
1115 input->ip.v6.src_port = sctph->source;
1116 input->ip.v6.dst_port = sctph->dest;
1117 }
1118 }
1119 break;
1120 case VIRTCHNL_PROTO_HDR_L2TPV3:
1121 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1122 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_L2TPV3;
1123 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1124 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_L2TPV3;
1125
1126 if (hdr->field_selector)
1127 input->l2tpv3_data.session_id = *((__be32 *)hdr->buffer);
1128 break;
1129 case VIRTCHNL_PROTO_HDR_ESP:
1130 esph = (struct ip_esp_hdr *)hdr->buffer;
1131 if (l3 == VIRTCHNL_PROTO_HDR_IPV4 &&
1132 l4 == VIRTCHNL_PROTO_HDR_UDP)
1133 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_NAT_T_ESP;
1134 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 &&
1135 l4 == VIRTCHNL_PROTO_HDR_UDP)
1136 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_NAT_T_ESP;
1137 else if (l3 == VIRTCHNL_PROTO_HDR_IPV4 &&
1138 l4 == VIRTCHNL_PROTO_HDR_NONE)
1139 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_ESP;
1140 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 &&
1141 l4 == VIRTCHNL_PROTO_HDR_NONE)
1142 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_ESP;
1143
1144 if (l4 == VIRTCHNL_PROTO_HDR_UDP)
1145 conf->inset_flag |= FDIR_INSET_FLAG_ESP_UDP;
1146 else
1147 conf->inset_flag |= FDIR_INSET_FLAG_ESP_IPSEC;
1148
1149 if (hdr->field_selector) {
1150 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1151 input->ip.v4.sec_parm_idx = esph->spi;
1152 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1153 input->ip.v6.sec_parm_idx = esph->spi;
1154 }
1155 break;
1156 case VIRTCHNL_PROTO_HDR_AH:
1157 ah = (struct ip_auth_hdr *)hdr->buffer;
1158 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1159 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_AH;
1160 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1161 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_AH;
1162
1163 if (hdr->field_selector) {
1164 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1165 input->ip.v4.sec_parm_idx = ah->spi;
1166 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1167 input->ip.v6.sec_parm_idx = ah->spi;
1168 }
1169 break;
1170 case VIRTCHNL_PROTO_HDR_PFCP:
1171 rawh = (u8 *)hdr->buffer;
1172 s_field = (rawh[0] >> PFCP_S_OFFSET) & PFCP_S_MASK;
1173 if (l3 == VIRTCHNL_PROTO_HDR_IPV4 && s_field == 0)
1174 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_PFCP_NODE;
1175 else if (l3 == VIRTCHNL_PROTO_HDR_IPV4 && s_field == 1)
1176 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_PFCP_SESSION;
1177 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 && s_field == 0)
1178 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_PFCP_NODE;
1179 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 && s_field == 1)
1180 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_PFCP_SESSION;
1181
1182 if (hdr->field_selector) {
1183 if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
1184 input->ip.v4.dst_port = cpu_to_be16(PFCP_PORT_NR);
1185 else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
1186 input->ip.v6.dst_port = cpu_to_be16(PFCP_PORT_NR);
1187 }
1188 break;
1189 case VIRTCHNL_PROTO_HDR_GTPU_IP:
1190 rawh = (u8 *)hdr->buffer;
1191 input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER;
1192
1193 if (hdr->field_selector)
1194 input->gtpu_data.teid = *(__be32 *)(&rawh[GTPU_TEID_OFFSET]);
1195 conf->ttype = ICE_FDIR_TUNNEL_TYPE_GTPU;
1196 break;
1197 case VIRTCHNL_PROTO_HDR_GTPU_EH:
1198 rawh = (u8 *)hdr->buffer;
1199
1200 if (hdr->field_selector)
1201 input->gtpu_data.qfi = rawh[GTPU_EH_QFI_OFFSET] & GTPU_EH_QFI_MASK;
1202 conf->ttype = ICE_FDIR_TUNNEL_TYPE_GTPU_EH;
1203 break;
1204 default:
1205 dev_dbg(dev, "Invalid header type 0x:%x for VF %d\n",
1206 hdr->type, vf->vf_id);
1207 return -EINVAL;
1208 }
1209 }
1210
1211 return 0;
1212 }
1213
1214 /**
1215 * ice_vc_fdir_parse_action
1216 * @vf: pointer to the VF info
1217 * @fltr: virtual channel add cmd buffer
1218 * @conf: FDIR configuration for each filter
1219 *
1220 * Parse the virtual channel filter's action and store them into conf
1221 *
1222 * Return: 0 on success, and other on error.
1223 */
1224 static int
ice_vc_fdir_parse_action(struct ice_vf * vf,struct virtchnl_fdir_add * fltr,struct virtchnl_fdir_fltr_conf * conf)1225 ice_vc_fdir_parse_action(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
1226 struct virtchnl_fdir_fltr_conf *conf)
1227 {
1228 struct virtchnl_filter_action_set *as = &fltr->rule_cfg.action_set;
1229 struct device *dev = ice_pf_to_dev(vf->pf);
1230 struct ice_fdir_fltr *input = &conf->input;
1231 u32 dest_num = 0;
1232 u32 mark_num = 0;
1233 int i;
1234
1235 if (as->count > VIRTCHNL_MAX_NUM_ACTIONS) {
1236 dev_dbg(dev, "Invalid action numbers:0x%x for VF %d\n",
1237 as->count, vf->vf_id);
1238 return -EINVAL;
1239 }
1240
1241 for (i = 0; i < as->count; i++) {
1242 struct virtchnl_filter_action *action = &as->actions[i];
1243
1244 switch (action->type) {
1245 case VIRTCHNL_ACTION_PASSTHRU:
1246 dest_num++;
1247 input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_OTHER;
1248 break;
1249 case VIRTCHNL_ACTION_DROP:
1250 dest_num++;
1251 input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DROP_PKT;
1252 break;
1253 case VIRTCHNL_ACTION_QUEUE:
1254 dest_num++;
1255 input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX;
1256 input->q_index = action->act_conf.queue.index;
1257 break;
1258 case VIRTCHNL_ACTION_Q_REGION:
1259 dest_num++;
1260 input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QGROUP;
1261 input->q_index = action->act_conf.queue.index;
1262 input->q_region = action->act_conf.queue.region;
1263 break;
1264 case VIRTCHNL_ACTION_MARK:
1265 mark_num++;
1266 input->fltr_id = action->act_conf.mark_id;
1267 input->fdid_prio = ICE_FXD_FLTR_QW1_FDID_PRI_THREE;
1268 break;
1269 default:
1270 dev_dbg(dev, "Invalid action type:0x%x for VF %d\n",
1271 action->type, vf->vf_id);
1272 return -EINVAL;
1273 }
1274 }
1275
1276 if (dest_num == 0 || dest_num >= 2) {
1277 dev_dbg(dev, "Invalid destination action for VF %d\n",
1278 vf->vf_id);
1279 return -EINVAL;
1280 }
1281
1282 if (mark_num >= 2) {
1283 dev_dbg(dev, "Too many mark actions for VF %d\n", vf->vf_id);
1284 return -EINVAL;
1285 }
1286
1287 return 0;
1288 }
1289
1290 /**
1291 * ice_vc_validate_fdir_fltr - validate the virtual channel filter
1292 * @vf: pointer to the VF info
1293 * @fltr: virtual channel add cmd buffer
1294 * @conf: FDIR configuration for each filter
1295 *
1296 * Return: 0 on success, and other on error.
1297 */
1298 static int
ice_vc_validate_fdir_fltr(struct ice_vf * vf,struct virtchnl_fdir_add * fltr,struct virtchnl_fdir_fltr_conf * conf)1299 ice_vc_validate_fdir_fltr(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
1300 struct virtchnl_fdir_fltr_conf *conf)
1301 {
1302 int ret;
1303
1304 ret = ice_vc_fdir_search_pattern(vf, fltr);
1305 if (ret)
1306 return ret;
1307
1308 ret = ice_vc_fdir_parse_pattern(vf, fltr, conf);
1309 if (ret)
1310 return ret;
1311
1312 return ice_vc_fdir_parse_action(vf, fltr, conf);
1313 }
1314
1315 /**
1316 * ice_vc_fdir_comp_rules - compare if two filter rules have the same value
1317 * @conf_a: FDIR configuration for filter a
1318 * @conf_b: FDIR configuration for filter b
1319 *
1320 * Return: 0 on success, and other on error.
1321 */
1322 static bool
ice_vc_fdir_comp_rules(struct virtchnl_fdir_fltr_conf * conf_a,struct virtchnl_fdir_fltr_conf * conf_b)1323 ice_vc_fdir_comp_rules(struct virtchnl_fdir_fltr_conf *conf_a,
1324 struct virtchnl_fdir_fltr_conf *conf_b)
1325 {
1326 struct ice_fdir_fltr *a = &conf_a->input;
1327 struct ice_fdir_fltr *b = &conf_b->input;
1328
1329 if (conf_a->ttype != conf_b->ttype)
1330 return false;
1331 if (a->flow_type != b->flow_type)
1332 return false;
1333 if (memcmp(&a->ip, &b->ip, sizeof(a->ip)))
1334 return false;
1335 if (memcmp(&a->mask, &b->mask, sizeof(a->mask)))
1336 return false;
1337 if (memcmp(&a->gtpu_data, &b->gtpu_data, sizeof(a->gtpu_data)))
1338 return false;
1339 if (memcmp(&a->gtpu_mask, &b->gtpu_mask, sizeof(a->gtpu_mask)))
1340 return false;
1341 if (memcmp(&a->l2tpv3_data, &b->l2tpv3_data, sizeof(a->l2tpv3_data)))
1342 return false;
1343 if (memcmp(&a->l2tpv3_mask, &b->l2tpv3_mask, sizeof(a->l2tpv3_mask)))
1344 return false;
1345 if (memcmp(&a->ext_data, &b->ext_data, sizeof(a->ext_data)))
1346 return false;
1347 if (memcmp(&a->ext_mask, &b->ext_mask, sizeof(a->ext_mask)))
1348 return false;
1349
1350 return true;
1351 }
1352
1353 /**
1354 * ice_vc_fdir_is_dup_fltr
1355 * @vf: pointer to the VF info
1356 * @conf: FDIR configuration for each filter
1357 *
1358 * Check if there is duplicated rule with same conf value
1359 *
1360 * Return: 0 true success, and false on error.
1361 */
1362 static bool
ice_vc_fdir_is_dup_fltr(struct ice_vf * vf,struct virtchnl_fdir_fltr_conf * conf)1363 ice_vc_fdir_is_dup_fltr(struct ice_vf *vf, struct virtchnl_fdir_fltr_conf *conf)
1364 {
1365 struct ice_fdir_fltr *desc;
1366 bool ret;
1367
1368 list_for_each_entry(desc, &vf->fdir.fdir_rule_list, fltr_node) {
1369 struct virtchnl_fdir_fltr_conf *node =
1370 to_fltr_conf_from_desc(desc);
1371
1372 ret = ice_vc_fdir_comp_rules(node, conf);
1373 if (ret)
1374 return true;
1375 }
1376
1377 return false;
1378 }
1379
1380 /**
1381 * ice_vc_fdir_insert_entry
1382 * @vf: pointer to the VF info
1383 * @conf: FDIR configuration for each filter
1384 * @id: pointer to ID value allocated by driver
1385 *
1386 * Insert FDIR conf entry into list and allocate ID for this filter
1387 *
1388 * Return: 0 true success, and other on error.
1389 */
1390 static int
ice_vc_fdir_insert_entry(struct ice_vf * vf,struct virtchnl_fdir_fltr_conf * conf,u32 * id)1391 ice_vc_fdir_insert_entry(struct ice_vf *vf,
1392 struct virtchnl_fdir_fltr_conf *conf, u32 *id)
1393 {
1394 struct ice_fdir_fltr *input = &conf->input;
1395 int i;
1396
1397 /* alloc ID corresponding with conf */
1398 i = idr_alloc(&vf->fdir.fdir_rule_idr, conf, 0,
1399 ICE_FDIR_MAX_FLTRS, GFP_KERNEL);
1400 if (i < 0)
1401 return -EINVAL;
1402 *id = i;
1403
1404 list_add(&input->fltr_node, &vf->fdir.fdir_rule_list);
1405 return 0;
1406 }
1407
1408 /**
1409 * ice_vc_fdir_remove_entry - remove FDIR conf entry by ID value
1410 * @vf: pointer to the VF info
1411 * @conf: FDIR configuration for each filter
1412 * @id: filter rule's ID
1413 */
1414 static void
ice_vc_fdir_remove_entry(struct ice_vf * vf,struct virtchnl_fdir_fltr_conf * conf,u32 id)1415 ice_vc_fdir_remove_entry(struct ice_vf *vf,
1416 struct virtchnl_fdir_fltr_conf *conf, u32 id)
1417 {
1418 struct ice_fdir_fltr *input = &conf->input;
1419
1420 idr_remove(&vf->fdir.fdir_rule_idr, id);
1421 list_del(&input->fltr_node);
1422 }
1423
1424 /**
1425 * ice_vc_fdir_lookup_entry - lookup FDIR conf entry by ID value
1426 * @vf: pointer to the VF info
1427 * @id: filter rule's ID
1428 *
1429 * Return: NULL on error, and other on success.
1430 */
1431 static struct virtchnl_fdir_fltr_conf *
ice_vc_fdir_lookup_entry(struct ice_vf * vf,u32 id)1432 ice_vc_fdir_lookup_entry(struct ice_vf *vf, u32 id)
1433 {
1434 return idr_find(&vf->fdir.fdir_rule_idr, id);
1435 }
1436
1437 /**
1438 * ice_vc_fdir_flush_entry - remove all FDIR conf entry
1439 * @vf: pointer to the VF info
1440 */
ice_vc_fdir_flush_entry(struct ice_vf * vf)1441 static void ice_vc_fdir_flush_entry(struct ice_vf *vf)
1442 {
1443 struct virtchnl_fdir_fltr_conf *conf;
1444 struct ice_fdir_fltr *desc, *temp;
1445
1446 list_for_each_entry_safe(desc, temp,
1447 &vf->fdir.fdir_rule_list, fltr_node) {
1448 conf = to_fltr_conf_from_desc(desc);
1449 list_del(&desc->fltr_node);
1450 devm_kfree(ice_pf_to_dev(vf->pf), conf);
1451 }
1452 }
1453
1454 /**
1455 * ice_vc_fdir_write_fltr - write filter rule into hardware
1456 * @vf: pointer to the VF info
1457 * @conf: FDIR configuration for each filter
1458 * @add: true implies add rule, false implies del rules
1459 * @is_tun: false implies non-tunnel type filter, true implies tunnel filter
1460 *
1461 * Return: 0 on success, and other on error.
1462 */
ice_vc_fdir_write_fltr(struct ice_vf * vf,struct virtchnl_fdir_fltr_conf * conf,bool add,bool is_tun)1463 static int ice_vc_fdir_write_fltr(struct ice_vf *vf,
1464 struct virtchnl_fdir_fltr_conf *conf,
1465 bool add, bool is_tun)
1466 {
1467 struct ice_fdir_fltr *input = &conf->input;
1468 struct ice_vsi *vsi, *ctrl_vsi;
1469 struct ice_fltr_desc desc;
1470 enum ice_status status;
1471 struct device *dev;
1472 struct ice_pf *pf;
1473 struct ice_hw *hw;
1474 int ret;
1475 u8 *pkt;
1476
1477 pf = vf->pf;
1478 dev = ice_pf_to_dev(pf);
1479 hw = &pf->hw;
1480 vsi = pf->vsi[vf->lan_vsi_idx];
1481 if (!vsi) {
1482 dev_dbg(dev, "Invalid vsi for VF %d\n", vf->vf_id);
1483 return -EINVAL;
1484 }
1485
1486 input->dest_vsi = vsi->idx;
1487 input->comp_report = ICE_FXD_FLTR_QW0_COMP_REPORT_SW;
1488
1489 ctrl_vsi = pf->vsi[vf->ctrl_vsi_idx];
1490 if (!ctrl_vsi) {
1491 dev_dbg(dev, "Invalid ctrl_vsi for VF %d\n", vf->vf_id);
1492 return -EINVAL;
1493 }
1494
1495 pkt = devm_kzalloc(dev, ICE_FDIR_MAX_RAW_PKT_SIZE, GFP_KERNEL);
1496 if (!pkt)
1497 return -ENOMEM;
1498
1499 ice_fdir_get_prgm_desc(hw, input, &desc, add);
1500 status = ice_fdir_get_gen_prgm_pkt(hw, input, pkt, false, is_tun);
1501 ret = ice_status_to_errno(status);
1502 if (ret) {
1503 dev_dbg(dev, "Gen training pkt for VF %d ptype %d failed\n",
1504 vf->vf_id, input->flow_type);
1505 goto err_free_pkt;
1506 }
1507
1508 ret = ice_prgm_fdir_fltr(ctrl_vsi, &desc, pkt);
1509 if (ret)
1510 goto err_free_pkt;
1511
1512 return 0;
1513
1514 err_free_pkt:
1515 devm_kfree(dev, pkt);
1516 return ret;
1517 }
1518
1519 /**
1520 * ice_vf_fdir_timer - FDIR program waiting timer interrupt handler
1521 * @t: pointer to timer_list
1522 */
ice_vf_fdir_timer(struct timer_list * t)1523 static void ice_vf_fdir_timer(struct timer_list *t)
1524 {
1525 struct ice_vf_fdir_ctx *ctx_irq = from_timer(ctx_irq, t, rx_tmr);
1526 struct ice_vf_fdir_ctx *ctx_done;
1527 struct ice_vf_fdir *fdir;
1528 unsigned long flags;
1529 struct ice_vf *vf;
1530 struct ice_pf *pf;
1531
1532 fdir = container_of(ctx_irq, struct ice_vf_fdir, ctx_irq);
1533 vf = container_of(fdir, struct ice_vf, fdir);
1534 ctx_done = &fdir->ctx_done;
1535 pf = vf->pf;
1536 spin_lock_irqsave(&fdir->ctx_lock, flags);
1537 if (!(ctx_irq->flags & ICE_VF_FDIR_CTX_VALID)) {
1538 spin_unlock_irqrestore(&fdir->ctx_lock, flags);
1539 WARN_ON_ONCE(1);
1540 return;
1541 }
1542
1543 ctx_irq->flags &= ~ICE_VF_FDIR_CTX_VALID;
1544
1545 ctx_done->flags |= ICE_VF_FDIR_CTX_VALID;
1546 ctx_done->conf = ctx_irq->conf;
1547 ctx_done->stat = ICE_FDIR_CTX_TIMEOUT;
1548 ctx_done->v_opcode = ctx_irq->v_opcode;
1549 spin_unlock_irqrestore(&fdir->ctx_lock, flags);
1550
1551 set_bit(ICE_FD_VF_FLUSH_CTX, pf->state);
1552 ice_service_task_schedule(pf);
1553 }
1554
1555 /**
1556 * ice_vc_fdir_irq_handler - ctrl_vsi Rx queue interrupt handler
1557 * @ctrl_vsi: pointer to a VF's CTRL VSI
1558 * @rx_desc: pointer to FDIR Rx queue descriptor
1559 */
1560 void
ice_vc_fdir_irq_handler(struct ice_vsi * ctrl_vsi,union ice_32b_rx_flex_desc * rx_desc)1561 ice_vc_fdir_irq_handler(struct ice_vsi *ctrl_vsi,
1562 union ice_32b_rx_flex_desc *rx_desc)
1563 {
1564 struct ice_pf *pf = ctrl_vsi->back;
1565 struct ice_vf_fdir_ctx *ctx_done;
1566 struct ice_vf_fdir_ctx *ctx_irq;
1567 struct ice_vf_fdir *fdir;
1568 unsigned long flags;
1569 struct device *dev;
1570 struct ice_vf *vf;
1571 int ret;
1572
1573 vf = &pf->vf[ctrl_vsi->vf_id];
1574
1575 fdir = &vf->fdir;
1576 ctx_done = &fdir->ctx_done;
1577 ctx_irq = &fdir->ctx_irq;
1578 dev = ice_pf_to_dev(pf);
1579 spin_lock_irqsave(&fdir->ctx_lock, flags);
1580 if (!(ctx_irq->flags & ICE_VF_FDIR_CTX_VALID)) {
1581 spin_unlock_irqrestore(&fdir->ctx_lock, flags);
1582 WARN_ON_ONCE(1);
1583 return;
1584 }
1585
1586 ctx_irq->flags &= ~ICE_VF_FDIR_CTX_VALID;
1587
1588 ctx_done->flags |= ICE_VF_FDIR_CTX_VALID;
1589 ctx_done->conf = ctx_irq->conf;
1590 ctx_done->stat = ICE_FDIR_CTX_IRQ;
1591 ctx_done->v_opcode = ctx_irq->v_opcode;
1592 memcpy(&ctx_done->rx_desc, rx_desc, sizeof(*rx_desc));
1593 spin_unlock_irqrestore(&fdir->ctx_lock, flags);
1594
1595 ret = del_timer(&ctx_irq->rx_tmr);
1596 if (!ret)
1597 dev_err(dev, "VF %d: Unexpected inactive timer!\n", vf->vf_id);
1598
1599 set_bit(ICE_FD_VF_FLUSH_CTX, pf->state);
1600 ice_service_task_schedule(pf);
1601 }
1602
1603 /**
1604 * ice_vf_fdir_dump_info - dump FDIR information for diagnosis
1605 * @vf: pointer to the VF info
1606 */
ice_vf_fdir_dump_info(struct ice_vf * vf)1607 static void ice_vf_fdir_dump_info(struct ice_vf *vf)
1608 {
1609 struct ice_vsi *vf_vsi;
1610 u32 fd_size, fd_cnt;
1611 struct device *dev;
1612 struct ice_pf *pf;
1613 struct ice_hw *hw;
1614 u16 vsi_num;
1615
1616 pf = vf->pf;
1617 hw = &pf->hw;
1618 dev = ice_pf_to_dev(pf);
1619 vf_vsi = pf->vsi[vf->lan_vsi_idx];
1620 vsi_num = ice_get_hw_vsi_num(hw, vf_vsi->idx);
1621
1622 fd_size = rd32(hw, VSIQF_FD_SIZE(vsi_num));
1623 fd_cnt = rd32(hw, VSIQF_FD_CNT(vsi_num));
1624 dev_dbg(dev, "VF %d: space allocated: guar:0x%x, be:0x%x, space consumed: guar:0x%x, be:0x%x",
1625 vf->vf_id,
1626 (fd_size & VSIQF_FD_CNT_FD_GCNT_M) >> VSIQF_FD_CNT_FD_GCNT_S,
1627 (fd_size & VSIQF_FD_CNT_FD_BCNT_M) >> VSIQF_FD_CNT_FD_BCNT_S,
1628 (fd_cnt & VSIQF_FD_CNT_FD_GCNT_M) >> VSIQF_FD_CNT_FD_GCNT_S,
1629 (fd_cnt & VSIQF_FD_CNT_FD_BCNT_M) >> VSIQF_FD_CNT_FD_BCNT_S);
1630 }
1631
1632 /**
1633 * ice_vf_verify_rx_desc - verify received FDIR programming status descriptor
1634 * @vf: pointer to the VF info
1635 * @ctx: FDIR context info for post processing
1636 * @status: virtchnl FDIR program status
1637 *
1638 * Return: 0 on success, and other on error.
1639 */
1640 static int
ice_vf_verify_rx_desc(struct ice_vf * vf,struct ice_vf_fdir_ctx * ctx,enum virtchnl_fdir_prgm_status * status)1641 ice_vf_verify_rx_desc(struct ice_vf *vf, struct ice_vf_fdir_ctx *ctx,
1642 enum virtchnl_fdir_prgm_status *status)
1643 {
1644 struct device *dev = ice_pf_to_dev(vf->pf);
1645 u32 stat_err, error, prog_id;
1646 int ret;
1647
1648 stat_err = le16_to_cpu(ctx->rx_desc.wb.status_error0);
1649 if (((stat_err & ICE_FXD_FLTR_WB_QW1_DD_M) >>
1650 ICE_FXD_FLTR_WB_QW1_DD_S) != ICE_FXD_FLTR_WB_QW1_DD_YES) {
1651 *status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
1652 dev_err(dev, "VF %d: Desc Done not set\n", vf->vf_id);
1653 ret = -EINVAL;
1654 goto err_exit;
1655 }
1656
1657 prog_id = (stat_err & ICE_FXD_FLTR_WB_QW1_PROG_ID_M) >>
1658 ICE_FXD_FLTR_WB_QW1_PROG_ID_S;
1659 if (prog_id == ICE_FXD_FLTR_WB_QW1_PROG_ADD &&
1660 ctx->v_opcode != VIRTCHNL_OP_ADD_FDIR_FILTER) {
1661 dev_err(dev, "VF %d: Desc show add, but ctx not",
1662 vf->vf_id);
1663 *status = VIRTCHNL_FDIR_FAILURE_RULE_INVALID;
1664 ret = -EINVAL;
1665 goto err_exit;
1666 }
1667
1668 if (prog_id == ICE_FXD_FLTR_WB_QW1_PROG_DEL &&
1669 ctx->v_opcode != VIRTCHNL_OP_DEL_FDIR_FILTER) {
1670 dev_err(dev, "VF %d: Desc show del, but ctx not",
1671 vf->vf_id);
1672 *status = VIRTCHNL_FDIR_FAILURE_RULE_INVALID;
1673 ret = -EINVAL;
1674 goto err_exit;
1675 }
1676
1677 error = (stat_err & ICE_FXD_FLTR_WB_QW1_FAIL_M) >>
1678 ICE_FXD_FLTR_WB_QW1_FAIL_S;
1679 if (error == ICE_FXD_FLTR_WB_QW1_FAIL_YES) {
1680 if (prog_id == ICE_FXD_FLTR_WB_QW1_PROG_ADD) {
1681 dev_err(dev, "VF %d, Failed to add FDIR rule due to no space in the table",
1682 vf->vf_id);
1683 *status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
1684 } else {
1685 dev_err(dev, "VF %d, Failed to remove FDIR rule, attempt to remove non-existent entry",
1686 vf->vf_id);
1687 *status = VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST;
1688 }
1689 ret = -EINVAL;
1690 goto err_exit;
1691 }
1692
1693 error = (stat_err & ICE_FXD_FLTR_WB_QW1_FAIL_PROF_M) >>
1694 ICE_FXD_FLTR_WB_QW1_FAIL_PROF_S;
1695 if (error == ICE_FXD_FLTR_WB_QW1_FAIL_PROF_YES) {
1696 dev_err(dev, "VF %d: Profile matching error", vf->vf_id);
1697 *status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
1698 ret = -EINVAL;
1699 goto err_exit;
1700 }
1701
1702 *status = VIRTCHNL_FDIR_SUCCESS;
1703
1704 return 0;
1705
1706 err_exit:
1707 ice_vf_fdir_dump_info(vf);
1708 return ret;
1709 }
1710
1711 /**
1712 * ice_vc_add_fdir_fltr_post
1713 * @vf: pointer to the VF structure
1714 * @ctx: FDIR context info for post processing
1715 * @status: virtchnl FDIR program status
1716 * @success: true implies success, false implies failure
1717 *
1718 * Post process for flow director add command. If success, then do post process
1719 * and send back success msg by virtchnl. Otherwise, do context reversion and
1720 * send back failure msg by virtchnl.
1721 *
1722 * Return: 0 on success, and other on error.
1723 */
1724 static int
ice_vc_add_fdir_fltr_post(struct ice_vf * vf,struct ice_vf_fdir_ctx * ctx,enum virtchnl_fdir_prgm_status status,bool success)1725 ice_vc_add_fdir_fltr_post(struct ice_vf *vf, struct ice_vf_fdir_ctx *ctx,
1726 enum virtchnl_fdir_prgm_status status,
1727 bool success)
1728 {
1729 struct virtchnl_fdir_fltr_conf *conf = ctx->conf;
1730 struct device *dev = ice_pf_to_dev(vf->pf);
1731 enum virtchnl_status_code v_ret;
1732 struct virtchnl_fdir_add *resp;
1733 int ret, len, is_tun;
1734
1735 v_ret = VIRTCHNL_STATUS_SUCCESS;
1736 len = sizeof(*resp);
1737 resp = kzalloc(len, GFP_KERNEL);
1738 if (!resp) {
1739 len = 0;
1740 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
1741 dev_dbg(dev, "VF %d: Alloc resp buf fail", vf->vf_id);
1742 goto err_exit;
1743 }
1744
1745 if (!success)
1746 goto err_exit;
1747
1748 is_tun = 0;
1749 resp->status = status;
1750 resp->flow_id = conf->flow_id;
1751 vf->fdir.fdir_fltr_cnt[conf->input.flow_type][is_tun]++;
1752
1753 ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
1754 (u8 *)resp, len);
1755 kfree(resp);
1756
1757 dev_dbg(dev, "VF %d: flow_id:0x%X, FDIR %s success!\n",
1758 vf->vf_id, conf->flow_id,
1759 (ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER) ?
1760 "add" : "del");
1761 return ret;
1762
1763 err_exit:
1764 if (resp)
1765 resp->status = status;
1766 ice_vc_fdir_remove_entry(vf, conf, conf->flow_id);
1767 devm_kfree(dev, conf);
1768
1769 ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
1770 (u8 *)resp, len);
1771 kfree(resp);
1772 return ret;
1773 }
1774
1775 /**
1776 * ice_vc_del_fdir_fltr_post
1777 * @vf: pointer to the VF structure
1778 * @ctx: FDIR context info for post processing
1779 * @status: virtchnl FDIR program status
1780 * @success: true implies success, false implies failure
1781 *
1782 * Post process for flow director del command. If success, then do post process
1783 * and send back success msg by virtchnl. Otherwise, do context reversion and
1784 * send back failure msg by virtchnl.
1785 *
1786 * Return: 0 on success, and other on error.
1787 */
1788 static int
ice_vc_del_fdir_fltr_post(struct ice_vf * vf,struct ice_vf_fdir_ctx * ctx,enum virtchnl_fdir_prgm_status status,bool success)1789 ice_vc_del_fdir_fltr_post(struct ice_vf *vf, struct ice_vf_fdir_ctx *ctx,
1790 enum virtchnl_fdir_prgm_status status,
1791 bool success)
1792 {
1793 struct virtchnl_fdir_fltr_conf *conf = ctx->conf;
1794 struct device *dev = ice_pf_to_dev(vf->pf);
1795 enum virtchnl_status_code v_ret;
1796 struct virtchnl_fdir_del *resp;
1797 int ret, len, is_tun;
1798
1799 v_ret = VIRTCHNL_STATUS_SUCCESS;
1800 len = sizeof(*resp);
1801 resp = kzalloc(len, GFP_KERNEL);
1802 if (!resp) {
1803 len = 0;
1804 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
1805 dev_dbg(dev, "VF %d: Alloc resp buf fail", vf->vf_id);
1806 goto err_exit;
1807 }
1808
1809 if (!success)
1810 goto err_exit;
1811
1812 is_tun = 0;
1813 resp->status = status;
1814 ice_vc_fdir_remove_entry(vf, conf, conf->flow_id);
1815 vf->fdir.fdir_fltr_cnt[conf->input.flow_type][is_tun]--;
1816
1817 ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
1818 (u8 *)resp, len);
1819 kfree(resp);
1820
1821 dev_dbg(dev, "VF %d: flow_id:0x%X, FDIR %s success!\n",
1822 vf->vf_id, conf->flow_id,
1823 (ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER) ?
1824 "add" : "del");
1825 devm_kfree(dev, conf);
1826 return ret;
1827
1828 err_exit:
1829 if (resp)
1830 resp->status = status;
1831 if (success)
1832 devm_kfree(dev, conf);
1833
1834 ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
1835 (u8 *)resp, len);
1836 kfree(resp);
1837 return ret;
1838 }
1839
1840 /**
1841 * ice_flush_fdir_ctx
1842 * @pf: pointer to the PF structure
1843 *
1844 * Flush all the pending event on ctx_done list and process them.
1845 */
ice_flush_fdir_ctx(struct ice_pf * pf)1846 void ice_flush_fdir_ctx(struct ice_pf *pf)
1847 {
1848 int i;
1849
1850 if (!test_and_clear_bit(ICE_FD_VF_FLUSH_CTX, pf->state))
1851 return;
1852
1853 ice_for_each_vf(pf, i) {
1854 struct device *dev = ice_pf_to_dev(pf);
1855 enum virtchnl_fdir_prgm_status status;
1856 struct ice_vf *vf = &pf->vf[i];
1857 struct ice_vf_fdir_ctx *ctx;
1858 unsigned long flags;
1859 int ret;
1860
1861 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
1862 continue;
1863
1864 if (vf->ctrl_vsi_idx == ICE_NO_VSI)
1865 continue;
1866
1867 ctx = &vf->fdir.ctx_done;
1868 spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
1869 if (!(ctx->flags & ICE_VF_FDIR_CTX_VALID)) {
1870 spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
1871 continue;
1872 }
1873 spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
1874
1875 WARN_ON(ctx->stat == ICE_FDIR_CTX_READY);
1876 if (ctx->stat == ICE_FDIR_CTX_TIMEOUT) {
1877 status = VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT;
1878 dev_err(dev, "VF %d: ctrl_vsi irq timeout\n",
1879 vf->vf_id);
1880 goto err_exit;
1881 }
1882
1883 ret = ice_vf_verify_rx_desc(vf, ctx, &status);
1884 if (ret)
1885 goto err_exit;
1886
1887 if (ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER)
1888 ice_vc_add_fdir_fltr_post(vf, ctx, status, true);
1889 else if (ctx->v_opcode == VIRTCHNL_OP_DEL_FDIR_FILTER)
1890 ice_vc_del_fdir_fltr_post(vf, ctx, status, true);
1891 else
1892 dev_err(dev, "VF %d: Unsupported opcode\n", vf->vf_id);
1893
1894 spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
1895 ctx->flags &= ~ICE_VF_FDIR_CTX_VALID;
1896 spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
1897 continue;
1898 err_exit:
1899 if (ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER)
1900 ice_vc_add_fdir_fltr_post(vf, ctx, status, false);
1901 else if (ctx->v_opcode == VIRTCHNL_OP_DEL_FDIR_FILTER)
1902 ice_vc_del_fdir_fltr_post(vf, ctx, status, false);
1903 else
1904 dev_err(dev, "VF %d: Unsupported opcode\n", vf->vf_id);
1905
1906 spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
1907 ctx->flags &= ~ICE_VF_FDIR_CTX_VALID;
1908 spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
1909 }
1910 }
1911
1912 /**
1913 * ice_vc_fdir_set_irq_ctx - set FDIR context info for later IRQ handler
1914 * @vf: pointer to the VF structure
1915 * @conf: FDIR configuration for each filter
1916 * @v_opcode: virtual channel operation code
1917 *
1918 * Return: 0 on success, and other on error.
1919 */
1920 static int
ice_vc_fdir_set_irq_ctx(struct ice_vf * vf,struct virtchnl_fdir_fltr_conf * conf,enum virtchnl_ops v_opcode)1921 ice_vc_fdir_set_irq_ctx(struct ice_vf *vf, struct virtchnl_fdir_fltr_conf *conf,
1922 enum virtchnl_ops v_opcode)
1923 {
1924 struct device *dev = ice_pf_to_dev(vf->pf);
1925 struct ice_vf_fdir_ctx *ctx;
1926 unsigned long flags;
1927
1928 ctx = &vf->fdir.ctx_irq;
1929 spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
1930 if ((vf->fdir.ctx_irq.flags & ICE_VF_FDIR_CTX_VALID) ||
1931 (vf->fdir.ctx_done.flags & ICE_VF_FDIR_CTX_VALID)) {
1932 spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
1933 dev_dbg(dev, "VF %d: Last request is still in progress\n",
1934 vf->vf_id);
1935 return -EBUSY;
1936 }
1937 ctx->flags |= ICE_VF_FDIR_CTX_VALID;
1938 spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
1939
1940 ctx->conf = conf;
1941 ctx->v_opcode = v_opcode;
1942 ctx->stat = ICE_FDIR_CTX_READY;
1943 timer_setup(&ctx->rx_tmr, ice_vf_fdir_timer, 0);
1944
1945 mod_timer(&ctx->rx_tmr, round_jiffies(msecs_to_jiffies(10) + jiffies));
1946
1947 return 0;
1948 }
1949
1950 /**
1951 * ice_vc_fdir_clear_irq_ctx - clear FDIR context info for IRQ handler
1952 * @vf: pointer to the VF structure
1953 *
1954 * Return: 0 on success, and other on error.
1955 */
ice_vc_fdir_clear_irq_ctx(struct ice_vf * vf)1956 static void ice_vc_fdir_clear_irq_ctx(struct ice_vf *vf)
1957 {
1958 struct ice_vf_fdir_ctx *ctx = &vf->fdir.ctx_irq;
1959 unsigned long flags;
1960
1961 del_timer(&ctx->rx_tmr);
1962 spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
1963 ctx->flags &= ~ICE_VF_FDIR_CTX_VALID;
1964 spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
1965 }
1966
1967 /**
1968 * ice_vc_add_fdir_fltr - add a FDIR filter for VF by the msg buffer
1969 * @vf: pointer to the VF info
1970 * @msg: pointer to the msg buffer
1971 *
1972 * Return: 0 on success, and other on error.
1973 */
ice_vc_add_fdir_fltr(struct ice_vf * vf,u8 * msg)1974 int ice_vc_add_fdir_fltr(struct ice_vf *vf, u8 *msg)
1975 {
1976 struct virtchnl_fdir_add *fltr = (struct virtchnl_fdir_add *)msg;
1977 struct virtchnl_fdir_add *stat = NULL;
1978 struct virtchnl_fdir_fltr_conf *conf;
1979 enum virtchnl_status_code v_ret;
1980 struct device *dev;
1981 struct ice_pf *pf;
1982 int is_tun = 0;
1983 int len = 0;
1984 int ret;
1985
1986 pf = vf->pf;
1987 dev = ice_pf_to_dev(pf);
1988 ret = ice_vc_fdir_param_check(vf, fltr->vsi_id);
1989 if (ret) {
1990 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1991 dev_dbg(dev, "Parameter check for VF %d failed\n", vf->vf_id);
1992 goto err_exit;
1993 }
1994
1995 ret = ice_vf_start_ctrl_vsi(vf);
1996 if (ret && (ret != -EEXIST)) {
1997 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1998 dev_err(dev, "Init FDIR for VF %d failed, ret:%d\n",
1999 vf->vf_id, ret);
2000 goto err_exit;
2001 }
2002
2003 stat = kzalloc(sizeof(*stat), GFP_KERNEL);
2004 if (!stat) {
2005 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2006 dev_dbg(dev, "Alloc stat for VF %d failed\n", vf->vf_id);
2007 goto err_exit;
2008 }
2009
2010 conf = devm_kzalloc(dev, sizeof(*conf), GFP_KERNEL);
2011 if (!conf) {
2012 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2013 dev_dbg(dev, "Alloc conf for VF %d failed\n", vf->vf_id);
2014 goto err_exit;
2015 }
2016
2017 len = sizeof(*stat);
2018 ret = ice_vc_validate_fdir_fltr(vf, fltr, conf);
2019 if (ret) {
2020 v_ret = VIRTCHNL_STATUS_SUCCESS;
2021 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_INVALID;
2022 dev_dbg(dev, "Invalid FDIR filter from VF %d\n", vf->vf_id);
2023 goto err_free_conf;
2024 }
2025
2026 if (fltr->validate_only) {
2027 v_ret = VIRTCHNL_STATUS_SUCCESS;
2028 stat->status = VIRTCHNL_FDIR_SUCCESS;
2029 devm_kfree(dev, conf);
2030 ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_FDIR_FILTER,
2031 v_ret, (u8 *)stat, len);
2032 goto exit;
2033 }
2034
2035 ret = ice_vc_fdir_config_input_set(vf, fltr, conf, is_tun);
2036 if (ret) {
2037 v_ret = VIRTCHNL_STATUS_SUCCESS;
2038 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT;
2039 dev_err(dev, "VF %d: FDIR input set configure failed, ret:%d\n",
2040 vf->vf_id, ret);
2041 goto err_free_conf;
2042 }
2043
2044 ret = ice_vc_fdir_is_dup_fltr(vf, conf);
2045 if (ret) {
2046 v_ret = VIRTCHNL_STATUS_SUCCESS;
2047 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_EXIST;
2048 dev_dbg(dev, "VF %d: duplicated FDIR rule detected\n",
2049 vf->vf_id);
2050 goto err_free_conf;
2051 }
2052
2053 ret = ice_vc_fdir_insert_entry(vf, conf, &conf->flow_id);
2054 if (ret) {
2055 v_ret = VIRTCHNL_STATUS_SUCCESS;
2056 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
2057 dev_dbg(dev, "VF %d: insert FDIR list failed\n", vf->vf_id);
2058 goto err_free_conf;
2059 }
2060
2061 ret = ice_vc_fdir_set_irq_ctx(vf, conf, VIRTCHNL_OP_ADD_FDIR_FILTER);
2062 if (ret) {
2063 v_ret = VIRTCHNL_STATUS_SUCCESS;
2064 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
2065 dev_dbg(dev, "VF %d: set FDIR context failed\n", vf->vf_id);
2066 goto err_free_conf;
2067 }
2068
2069 ret = ice_vc_fdir_write_fltr(vf, conf, true, is_tun);
2070 if (ret) {
2071 v_ret = VIRTCHNL_STATUS_SUCCESS;
2072 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
2073 dev_err(dev, "VF %d: writing FDIR rule failed, ret:%d\n",
2074 vf->vf_id, ret);
2075 goto err_rem_entry;
2076 }
2077
2078 exit:
2079 kfree(stat);
2080 return ret;
2081
2082 err_rem_entry:
2083 ice_vc_fdir_clear_irq_ctx(vf);
2084 ice_vc_fdir_remove_entry(vf, conf, conf->flow_id);
2085 err_free_conf:
2086 devm_kfree(dev, conf);
2087 err_exit:
2088 ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_FDIR_FILTER, v_ret,
2089 (u8 *)stat, len);
2090 kfree(stat);
2091 return ret;
2092 }
2093
2094 /**
2095 * ice_vc_del_fdir_fltr - delete a FDIR filter for VF by the msg buffer
2096 * @vf: pointer to the VF info
2097 * @msg: pointer to the msg buffer
2098 *
2099 * Return: 0 on success, and other on error.
2100 */
ice_vc_del_fdir_fltr(struct ice_vf * vf,u8 * msg)2101 int ice_vc_del_fdir_fltr(struct ice_vf *vf, u8 *msg)
2102 {
2103 struct virtchnl_fdir_del *fltr = (struct virtchnl_fdir_del *)msg;
2104 struct virtchnl_fdir_del *stat = NULL;
2105 struct virtchnl_fdir_fltr_conf *conf;
2106 enum virtchnl_status_code v_ret;
2107 struct device *dev;
2108 struct ice_pf *pf;
2109 int is_tun = 0;
2110 int len = 0;
2111 int ret;
2112
2113 pf = vf->pf;
2114 dev = ice_pf_to_dev(pf);
2115 ret = ice_vc_fdir_param_check(vf, fltr->vsi_id);
2116 if (ret) {
2117 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2118 dev_dbg(dev, "Parameter check for VF %d failed\n", vf->vf_id);
2119 goto err_exit;
2120 }
2121
2122 stat = kzalloc(sizeof(*stat), GFP_KERNEL);
2123 if (!stat) {
2124 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2125 dev_dbg(dev, "Alloc stat for VF %d failed\n", vf->vf_id);
2126 goto err_exit;
2127 }
2128
2129 len = sizeof(*stat);
2130
2131 conf = ice_vc_fdir_lookup_entry(vf, fltr->flow_id);
2132 if (!conf) {
2133 v_ret = VIRTCHNL_STATUS_SUCCESS;
2134 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST;
2135 dev_dbg(dev, "VF %d: FDIR invalid flow_id:0x%X\n",
2136 vf->vf_id, fltr->flow_id);
2137 goto err_exit;
2138 }
2139
2140 /* Just return failure when ctrl_vsi idx is invalid */
2141 if (vf->ctrl_vsi_idx == ICE_NO_VSI) {
2142 v_ret = VIRTCHNL_STATUS_SUCCESS;
2143 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
2144 dev_err(dev, "Invalid FDIR ctrl_vsi for VF %d\n", vf->vf_id);
2145 goto err_exit;
2146 }
2147
2148 ret = ice_vc_fdir_set_irq_ctx(vf, conf, VIRTCHNL_OP_DEL_FDIR_FILTER);
2149 if (ret) {
2150 v_ret = VIRTCHNL_STATUS_SUCCESS;
2151 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
2152 dev_dbg(dev, "VF %d: set FDIR context failed\n", vf->vf_id);
2153 goto err_exit;
2154 }
2155
2156 ret = ice_vc_fdir_write_fltr(vf, conf, false, is_tun);
2157 if (ret) {
2158 v_ret = VIRTCHNL_STATUS_SUCCESS;
2159 stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
2160 dev_err(dev, "VF %d: writing FDIR rule failed, ret:%d\n",
2161 vf->vf_id, ret);
2162 goto err_del_tmr;
2163 }
2164
2165 kfree(stat);
2166
2167 return ret;
2168
2169 err_del_tmr:
2170 ice_vc_fdir_clear_irq_ctx(vf);
2171 err_exit:
2172 ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_FDIR_FILTER, v_ret,
2173 (u8 *)stat, len);
2174 kfree(stat);
2175 return ret;
2176 }
2177
2178 /**
2179 * ice_vf_fdir_init - init FDIR resource for VF
2180 * @vf: pointer to the VF info
2181 */
ice_vf_fdir_init(struct ice_vf * vf)2182 void ice_vf_fdir_init(struct ice_vf *vf)
2183 {
2184 struct ice_vf_fdir *fdir = &vf->fdir;
2185
2186 idr_init(&fdir->fdir_rule_idr);
2187 INIT_LIST_HEAD(&fdir->fdir_rule_list);
2188
2189 spin_lock_init(&fdir->ctx_lock);
2190 fdir->ctx_irq.flags = 0;
2191 fdir->ctx_done.flags = 0;
2192 }
2193
2194 /**
2195 * ice_vf_fdir_exit - destroy FDIR resource for VF
2196 * @vf: pointer to the VF info
2197 */
ice_vf_fdir_exit(struct ice_vf * vf)2198 void ice_vf_fdir_exit(struct ice_vf *vf)
2199 {
2200 ice_vc_fdir_flush_entry(vf);
2201 idr_destroy(&vf->fdir.fdir_rule_idr);
2202 ice_vc_fdir_rem_prof_all(vf);
2203 ice_vc_fdir_free_prof_all(vf);
2204 }
2205